Chains and heterogens:
PDB Chain Sequences:
>1dd9A (A:) tlyqlmdglntfyqqslqqpvatsarqylekrglsheviarfaigfappgwdnvlkrfgg npenrqslidagmlvtndqgrsydrfrervmfpirdkrgrvigfggrvlgndtpkylnsp etdifhkgrqlyglyeaqqdnaepnrllvvegymdvvalaqyginyavaslgtsttadhi qllfratnnviccydgdragrdaawraletalpymtdgrqlrfmflpdgedpdtlvrkeg keafearmeqamplsaflfnslmpqvdlstpdgrarlstlalplisqvpgetlriylrqe lgnklgilddsqle
>1dd9A (A:) tlyqlmdglntfyqqslqqpvatsarqylekrglsheviarfaigfappgwdnvlkrfgg npenrqslidagmlvtnrsydrfrervmfpirdkrgrvigfggrvlgndtpkylnspetd ifhkgrqlyglyeaqqdnaepnrllvvegymdvvalaqyginyavaslgsttadhiqllf ratnnviccydgdragrdaawraletalpymtdgrqlrfmflpdgedpdtlvrkegkeaf earmeqamplsaflfnslmpqvdlstpdgrarlstlalplisqvpgetlriylrqelgnk lgilddsqle